MAX7219 Microcontroller Display with 5P Line Dot Matrix Module fit for Arduino

ITEM NAME:MAX7219 Microcontroller Display with 5P Line Dot Matrix Module fit for Arduino MAX7219 Microcontroller 4 In 1 Display with 5P Line Dot Matrix Module for Arduino SPECIFICATIONS.(5) A single module can drive a 8x8 dot matrix common cathode. 1) The left side of the module to the input port, the right to an output port. 4) Module with input and output interfaces, support for cascading multiple modules.